Merge "Revert "Drop all path-related methods from android::String8"" into main am: acc7ff19f9

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2745822

Change-Id: I78a8590c20b437779ed0231041addf5f46b11b9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>